/**
 * 
 */
package org.cuatrovientos.erp.controller;


import java.sql.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.validation.Valid;

import org.apache.log4j.Logger;
import org.cuatrovientos.erp.business.BOGenericInterface;
import org.cuatrovientos.erp.business.ProductBO;
import org.cuatrovientos.erp.model.Product;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.beans.factory.annotation.Autowired;



/**
 * Controller class form Product management
 * @author Daniel Cobo
 *
 */
@Controller
public class ProductController {

	// Get log4j logger
	private static final Logger logger = Logger.getLogger(ProductController.class);

	@Autowired
    private ProductBO productBO;
    
        /**
         * default constructor
         */
        public ProductController () {
               logger.info("Product BEAN instantiated");
                
        }
        
        
        
        /**
         * handles default /product or /product/list request
         * @param model
         * @return the name of the view to show
         *  @RequestMapping({"/product","/product/list"})
         */
        @RequestMapping({"/product","/product/list"})
        public ModelAndView productDefault() {
        	logger.info("default");
 
                Map<String, Object> model = new HashMap<String, Object>();

                List<Product> productList = productBO.selectAll();
                model.put("products", productList );
                return new ModelAndView("ProductList", model);     
        }



        /**
         * handles delete product, and redirect to product default
         * @param model
         * @return the name of the view to show
         *  @RequestMapping({"/product","/product/list"})
         */
        @RequestMapping(method=RequestMethod.GET,value={"/product/delete"})
        public String deleteProduct(@RequestParam(value="id", defaultValue="", required=true) int id) {
        	logger.info("delete " + id);

            productBO.deleteById(id);
            return "redirect:/product";

        }
        
        /**
         * handles new product request. In the jsp we are using spring's form:form tags
         * Spring expects a model called by default 'command' or any name
         * we set to it: in this case "product"
         * @return the name of the view to show
         * @RequestMapping({"/product/new"})
         */
        @RequestMapping(method=RequestMethod.GET,value={"/product/new"})
        public ModelAndView newProduct() {
        		logger.info("new product ");
                Product product = new Product();
               
                return new ModelAndView("NewProduct", "product", product);
        }
        
        /**
         * handles new product request. In the jsp we are using spring's form:form tags
         * Spring expects a model called by default 'command' or any name
         * we set to it.
         * @return the name of the view to show
         * @RequestMapping({"/product/new"})
         */
        @RequestMapping(method=RequestMethod.POST,value={"/product/save"})
        public String newProduct(@Valid Product product, BindingResult bindingResult) {
        		logger.info("new product " + product.toString());
        		
        		// In case of validation errors, go back to form
        		if (bindingResult.hasErrors()) {
        			Map<String, Object> model = new HashMap<String, Object>();
        			model.put("product", product);
        			return "NewProduct";
        		}
        		
        		// If data is ok, insert and go on
                productBO.insert(product);
                return "redirect:/product";
        }
        
        /**
         * handles delete product, and redirect to product default
         * @param model
         * @return the name of the view to show
         *  @RequestMapping({"/product","/product/list"})
         */
        @RequestMapping(method=RequestMethod.GET,value={"/product/detail"})
        public ModelAndView productDetail(@RequestParam(value="id", defaultValue="", required=true) int id) {
        	logger.info("Detail " + id);
            Map<String,Object> model = new HashMap<String,Object>();
            Object product = productBO.selectById(id);
            model.put("product", product);
            
            return new ModelAndView("ProductDetail",model);

        }
        
        /**
         * handles product update, first part: register loaded
         * @param model
         * @return the name of the view to show
         *  @RequestMapping({"/product/update"})
         */
        @RequestMapping(method=RequestMethod.GET,value={"/product/update"})
        public ModelAndView update(@RequestParam(value="id", defaultValue="", required=true) int id) {
        	logger.info("update " + id);
                Map<String,Object> model = new HashMap<String,Object>();
                Object product = productBO.selectById(id);
                model.put("product", product);
               return new ModelAndView("UpdateProduct",model);

        }
        
        /**
         * handles save update product request. In the jsp we are using spring's form:form tags
         * Spring expects a model called by default 'command' or any name
         * we set to it.
         * @return the name of the view to show
         * @RequestMapping({"/product/saveUpdate"})
         */
        @RequestMapping(method=RequestMethod.POST,value={"/product/saveupdate"})
        public String saveUpdate(@Valid Product product, BindingResult bindingResult) {
        		logger.info("update product " + product.toString());
        		
        		// In case of validation errors, go back to form
        		if (bindingResult.hasErrors()) {
        			Map<String, Object> model = new HashMap<String, Object>();
        			model.put("product", product);
        			return "UpdateProduct";
        		}
        		
                productBO.update(product);
                return "redirect:/product";
        }
}
